We look at the division of 77202592 by 325 
The aim is to understand the frequency of 325 in 77202592.

Let's proceed to step 1:
The number 325 fits into 7 0 times, leaving a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 325

Moving on to step 2:
77 divided by 325 is 0 with a remainder of 77.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 77, we end up with 77.
Fetch the next digit (2) from the dividend, attach it to 77 and continue: 772 / 325

Step 3:
325 can be fit into 772 2 times, resulting in a remainder of 122.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 650 from 772 leaves us with 122.
Fetch the next digit (0) from the dividend, attach it to 122 and continue: 1220 / 325

Advancing to step 4:
325 can be fit into 1220 3 times, resulting in a remainder of 245.
Put 3 as the next digit of the answer. 
Result so far: 23.0
Subtracting 975 from 1220 leaves us with 245.
Fetch the next digit (2) from the dividend, attach it to 245 and continue: 2452 / 325

Let's proceed to step 5:
325 goes into 2452 7 times with a remainder of 177.
Write down 7 as next digit of the result. 
Result so far: 237.0
Subtracting 2275 from 2452 leaves us with 177.
Take the next digit (5) from the dividend and append it to 177, then repeat: 1775 / 325

Let's proceed to step 6:
325 goes into 1775 5 times with a remainder of 150.
Record the quotient 5 as the next digit in the result. 
Result so far: 2375.0
Deduct 1625 from 1775 and we're left with 150.
Grab the next digit (9) from the dividend, add it to 150, then carry on: 1509 / 325

Going ahead to step 7:
325 goes into 1509 4 times with a remainder of 209.
Record the quotient 4 as the next digit in the result. 
Result so far: 23754.0
The remainder is 209 after subtracting 1300 from 1509.
Append the next digit (2) from the dividend to 209 and continue with: 2092 / 325

Advancing to step 8:
If we divide 2092 by 325, we get 6 and a remainder of 142.
The number 6 becomes the next digit in our result. 
Result so far: 237546.0
Subtract 1950 from 2092 to get 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Advancing to step 9:
325 goes into 1420 4 times with a remainder of 120.
Write down 4 as next digit of the result. 
Result so far: 237546.4
If we take 1300 away from 1420, we end up with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Let's proceed to step 10:
When dividing 1200 by 325, we get 3 with a remainder of 225.
The number 3 becomes the next digit in our result. 
Result so far: 237546.43
Subtracting 975 from 1200 leaves us with 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Going ahead to step 11:
If we divide 2250 by 325, we get 6 and a remainder of 300.
The next digit of our result is 6. 
Result so far: 237546.436
If we subtract 1950 from 2250, we get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Advancing to step 12:
325 can be fit into 3000 9 times, resulting in a remainder of 75.
Write down 9 as next digit of the result. 
Result so far: 237546.4369
If we subtract 2925 from 3000, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Moving on to step 13:
750 divided by 325 is 2 with a remainder of 100.
Record the quotient 2 as the next digit in the result. 
Result so far: 237546.43692
Deduct 650 from 750 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

On to step 14:
The number 325 fits into 1000 3 times, leaving a remainder of 25.
The next digit of our result is 3. 
Result so far: 237546.436923
If we subtract 975 from 1000, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 15:
250 divided by 325 is 0 with a remainder of 250.
Use 0 as the next digit of our solution. 
Result so far: 237546.436923
Subtracting 0 from 250 leaves us with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Let's proceed to step 16:
If we divide 2500 by 325, we get 7 and a remainder of 225.
Use 7 as the next digit of our solution. 
Result so far: 237546.43692307
If we subtract 2275 from 2500, we get 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

The final outcome is 237546.43692307, with a leftover of 2.25e-07.